'Cycles of time'
Posted: March 30th, 2023, 9:53 pm
In a reply to an earlier post by Clitheroekid, I commented that it may be that we simply cannot understand what will happen when we die because there is no earthly analogy that we can relate to, and that this already applies to some extent to the work of mathematical physicists in deriving the behaviour of the quantum world.
Having just read Roger Penrose’s Cycles of Time – or at least the parts I could understand – it made me realise that anything other than a desultory and unsatisfactory response to “Daddy, what happened before the Big Bang” has now become an impossibility. Penrose is quite possibly the greatest living mathematical physicist. His extraordinary proposals demand serious consideration, and the mechanism he describes is so divorced from our familiar day-to-day reality as to be incomprehensible to all but a small minority of specialists.
As I commented in my earlier reply, “how can we relate to something that can be a particle and a wave, and be in several places at the same time and change state depending on whether we observe it?”, but this is easy peasy compared to trying to explain how in umpteen billions of years’ time when the universe has hugely expanded and cooled such that there is nothing left but a rarefied massless and timeless ‘atmosphere’ of photons, that this is mathematically identical to the next incipient Big Bang. JBS Haldane was right: “the Universe is not only queerer than we suppose, but queerer than we can suppose” and it just gets queerer by the day!
Having just read Roger Penrose’s Cycles of Time – or at least the parts I could understand – it made me realise that anything other than a desultory and unsatisfactory response to “Daddy, what happened before the Big Bang” has now become an impossibility. Penrose is quite possibly the greatest living mathematical physicist. His extraordinary proposals demand serious consideration, and the mechanism he describes is so divorced from our familiar day-to-day reality as to be incomprehensible to all but a small minority of specialists.
As I commented in my earlier reply, “how can we relate to something that can be a particle and a wave, and be in several places at the same time and change state depending on whether we observe it?”, but this is easy peasy compared to trying to explain how in umpteen billions of years’ time when the universe has hugely expanded and cooled such that there is nothing left but a rarefied massless and timeless ‘atmosphere’ of photons, that this is mathematically identical to the next incipient Big Bang. JBS Haldane was right: “the Universe is not only queerer than we suppose, but queerer than we can suppose” and it just gets queerer by the day!